13
Communications
(continued)
AS-400 INTERFACE
This female DB9 port connects your UPS to an IBM AS-400
computer via the included AS-400 cable. The port uses AS-400
communications to report UPS status. It can be used to allow an
AS-400 to automatically save open files and shut down its operat-
ing system during a blackout. AS-400 protocol includes: operation
on inverter, operation on AC power supply, operation on battery
and low battery alarm.
Pin assignment:
Pin 5:
Common
Pin 6:
Operation on AC power supply
Pin 7:
Low battery alarm
Pin 8:
Operation on inverter
Pin 9:
Operation on battery
AS-400 INTERFACE TABLE
Pin 6,5
Pin 7,5
Pin 8,5
Pin 9,5
Battery
OFF
*
ON
ON
Low Battery
OFF
ON
ON
ON
Direct Mains Supply
ON
OFF
OFF
OFF
Inverter
OFF
*
ON
*
* Inactive: may be in either state.
DRY CONTACT INTERFACE
This female DB9 contact-closure port allows your UPS to
send contact-closure signals to indicate that it is on battery
back-up mode and if its batteries are running low. The port
can also receive a remote shutdown signal.
DRY CONTACT INTERFACE TABLE
UPS Operating
Pin 8,3
Pin 1,3
Mode
Normal
OPEN
OPEN
Back Up
CLOSE
*
Low Battery
CLOSE
CLOSE
* Inactive: may be in either state.
3 V
+
-
Pin assignment:
